The field of Psychoneuroimmunology is a multidisciplinary science that involves psychologists, biologists and neurologists (or medical researchers) who study the interaction between psychological processes and both the immune and nervous systems. One of the main goals of this field is to understand how some psychological processes (such as stress) can affect our body and our immune system.
Therefore, we can see that in the field of Psychoneuroimmunology, psychologists, biologists, and medical researchers combine their expertise to study the effects of the psychological factors on the immune system.
When you're having a conversation you look at that person. When you go to look away that means that conversation is remotely over, most of the time anyways.
The first person to sail around Africa and to reach India ( and to get some precious spices from there!) was Portuguese Vasco da Gama, who did this in his journey that started in 1497 and reached India in 1498 ( and returned in 1499)
I am not sure that they can or would be called heroes. They found new plants, met native Americans, and charted unknown areas of the new lands, but they were not well known in their time.
